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authortangwenji <tang.wenji@zte.com.cn>2017-08-17 19:51:54 +0800
committerNicholas Bellinger <nab@linux-iscsi.org>2017-11-04 14:45:21 -0700
commitc58a252beb04cf0e02d6a746b2ed7ea89b6deb71 (patch)
tree785099e62f55e4ff5e580b2109377ec3d9858daa /drivers/target
parent88fb2fa7db7510bf1078226ab48d162d9854f3d4 (diff)
downloadlinux-c58a252beb04cf0e02d6a746b2ed7ea89b6deb71.tar.bz2
target: fix buffer offset in core_scsi3_pri_read_full_status
When at least two initiators register pr on the same LUN, the target returns the exception data due to buffer offset error, therefore the initiator executes command 'sg_persist -s' may cause the initiator to appear segfault error. This fixes a regression originally introduced by: commit a85d667e58bddf73be84d1981b41eaac985ed216 Author: Bart Van Assche <bart.vanassche@sandisk.com> Date: Tue May 23 16:48:27 2017 -0700 target: Use {get,put}_unaligned_be*() instead of open coding these functions Signed-off-by: tangwenji <tang.wenji@zte.com.cn> Cc: stable@vger.kernel.org # 4.13+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target')
-rw-r--r--drivers/target/target_core_pr.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c
index dd2cd8048582..9f25c9c6f67d 100644
--- a/drivers/target/target_core_pr.c
+++ b/drivers/target/target_core_pr.c
@@ -4011,6 +4011,7 @@ core_scsi3_pri_read_full_status(struct se_cmd *cmd)
* Set the ADDITIONAL DESCRIPTOR LENGTH
*/
put_unaligned_be32(desc_len, &buf[off]);
+ off += 4;
/*
* Size of full desctipor header minus TransportID
* containing $FABRIC_MOD specific) initiator device/port